A 17 metre tall tree casts a shadow that is 20 metres long. What angle, to the nearest degree, does the sun make with the ground

About 32º

Step-by-step explanation:

since 17 m is one leg, and 20m is the hypotenuse, we can write:

cos (x) = 17/20

x = cos-1(17/20)

x is about 32º

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )